Home / 55,165.96-82,748.82-20,091.28

Finding the Fourth Proportional to 55,165.96, 82,748.82 and 20,091.28

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Solution

The fourth proportional to 55,165.96, 82,748.82 and 20,091.28 is: 30,136.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,165.96 : 82,748.82 = 20,091.28 : x
  2. Step 2: Convert to fraction form
    55,165.96/82,748.82 = 20,091.28/x
  3. Step 3: Cross multiply
    55,165.96x = 82,748.82 × 20,091.28
  4. Step 4: Simplify right side
    55,165.96x = 1,662,529,712.29
  5. Step 5: Solve for x
    x = 1,662,529,712.29/55,165.96
  6. Step 6: Final answer
    x = 30,136.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.